alsaraha
Define an extra function for all the phoenix modules
I want to use a function I defined myself put_assoc_new/4. I want it to be available like how put_assoc/3 is available, by adding import Ecto.Changeset, I don’t want to add extra imports if that is possible.
if I can add it to the Ecto.Changeset module that would be great.
what are your thoughts?
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jeremyjh
I created use modules for schemas and context modules in my application to include things like this.
For example
defmodule MyApp.Schema do
defmacro __using__(_) do
quote do
use Ecto.Schema
import Ecto.Changeset
alias Ecto.Changeset
import MyApp.ChangesetHelpers
end
end
end
defmodule MyApp.ChangesetHelpers do
def put_assoc_new ...
end
defmodule MyApp.User do
use MyApp.Schema
schema "users" ...
end
dimitarvp
You can’t extend a library that’s not yours. 
You can define your own helper in your project and use it from there.
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